SPRUJ54A june   2023  – july 2023

 

  1.   1
  2.   C2000 F280015x Series LaunchPad Development Kit
  3.   Trademarks
  4. 1Board Overview
    1. 1.1 Kit Contents
    2. 1.2 Features
    3. 1.3 Specifications
      1. 1.3.1 External Power Supply or Accessory Requirements
    4. 1.4 Using the F280015x LaunchPad
    5. 1.5 BoosterPacks
    6. 1.6 Hardware Revisions
      1. 1.6.1 Revision A
  5. 2Software Development
    1. 2.1 Software Tools and Packages
    2. 2.2 F280015x LaunchPad Demo Program
    3. 2.3 Programming and Running Other Software on the F280015x LaunchPad
  6. 3Hardware Description
    1. 3.1 Functional Description and Connections
      1. 3.1.1 Microcontroller
      2. 3.1.2 Power Domains
      3. 3.1.3 LEDs
      4. 3.1.4 Encoder Connectors
      5. 3.1.5 Controller Area Network (CAN)
      6. 3.1.6 Boot Modes
      7. 3.1.7 BoosterPack Sites
      8. 3.1.8 Analog Voltage Reference Header
      9. 3.1.9 Other Headers and Jumpers
        1. 3.1.9.1 USB Isolation Block
        2. 3.1.9.2 BoosterPack Site 2 Power Isolation
        3. 3.1.9.3 Alternate Power
    2. 3.2 Debug Interface
      1. 3.2.1 XDS110 Debug Probe
      2. 3.2.2 XDS110 Output
      3. 3.2.3 Virtual COM Port
    3. 3.3 Alternate Routing
      1. 3.3.1 Overview
      2. 3.3.2 UART Routing
      3. 3.3.3 EQEP Routing
      4. 3.3.4 CAN Routing
      5. 3.3.5 X1/X2 Routing
      6. 3.3.6 PWM DAC
  7. 4Board Design
    1. 4.1 Schematic
    2. 4.2 PCB Layout
    3. 4.3 BOM
    4. 4.4 LAUNCHXL-F2800157 Board Dimensions
  8. 5Frequently Asked Questions
  9. 6References
    1. 6.1 Reference Documents
    2. 6.2 Other TI Components Used in This Design
  10. 7Revision History

3.3.5 X1/X2 Routing

The F2800157 crystal oscillator output signal, X2, is multiplexed with GPIO18 and the crystal oscillator input, X1, is multiplexed with GPIO19. By default, the Launchpad uses an on-board crystal oscillator, Y2, as the clock source for the on-chip Phase-Locked Loop (PLL) that requires both X1 and X2 signals of the MCU. To balance the requirement of having cleanly routed oscillator signals and bringing all possible GPIOs to the BoosterPack connectors, both GPIO18/X2 and GPIO19/X1 can be routed to the BoosterPack connectors through 0 Ω resistors. If GPIO18 or GPIO19 are needed at the BoosterPack connectors, the on-chip zero-pin oscillators must be used as the clock source for the on-chip PLL. For more information on the X1/X2 configurations, see TMS320F280015x Real-Time Microcontrollers.

If GPIO18 functionality is needed at the BoosterPack Connector:

  1. Remove R10 to separate GPIO18 from Y2.
  2. Populate R12 to connect GPIO18 to the BoosterPack connector
If GPIO19 functionality is needed at the BoosterPack Connector:
  1. Remove R11 to separate GPIO19 from Y2.
  2. Populate R13 to connect GPIO19 to the BoosterPack connector.